Random-phase approximation based on relativistic point-coupling models
核理论
2009-11-11 v1
摘要
The matrix equations of the random-phase approximation (RPA) are derived for the point-coupling Lagrangian of the relativistic mean-field (RMF) model. Fully consistent RMF plus (quasiparticle) RPA illustrative calculations of the isoscalar monopole, isovector dipole and isoscalar quadrupole response of spherical medium-heavy and heavy nuclei, test the phenomenological effective interactions of the point-coupling RMF model. A comparison with experiment shows that the best point-coupling effective interactions accurately reproduce not only ground-state properties, but also data on excitation energies of giant resonances.
引用
@article{arxiv.nucl-th/0506043,
title = {Random-phase approximation based on relativistic point-coupling models},
author = {T. Niksic and D. Vretenar and P. Ring},
journal= {arXiv preprint arXiv:nucl-th/0506043},
year = {2009}
}
备注
24 pages, 4 figures, accepted for publication in Physical Review C